E1M5: Sewer System (Chex Quest 2)

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Chex Quest 2 maps
This level occupies the map slot E1M5. For other maps which occupy this slot, see Category:E1M5.

E1M5: Sewer System is the fifth and final map of Chex Quest 2. It was designed by Digital Café and uses the music track "Sewer" by Andrew Benon.


Map of Sewer System
Letters in italics refer to marked spots on the map. Sector, thing, and linedef numbers in boldface are secrets which count toward the end-of-level tally.


Open the door, turn left twice, open the two doors set in front of each other, turn right and open the door, take the yellow key and flip the switch. Backtrack to the fourway and go straight, go through the vent, turn left twice, open the yellow door, go straight or left to get the red key. Backtrack to the first fourway, turn right and open the red door, go right, open door, go downstairs, step on the blue pad teleporter. Turn 180 degrees and flip the switch.

Other points of interest[edit]

You don't have to kill the flemoidus maximuses to beat the map.



  1. Behind the yellow door, if you go left, to the left of the unopenable misaligned wall there's an openable wall with a flemoidus bipedicus and a zorchpak. (sector 131)
  2. Behind the red door, to the left there's a vent, go through it to find a flemoidus commonus, a chex armor and a bowl of vegetables. (sector 191)


  1. To the left of the yellow key room there's an openable wall that acts as a shortcut on both ways so you won't have to open the three doors.
  2. In front of the yellow door, go straight, then left, get on the small edge and press a wall behind it, there's a bowl of fruits and a lift, you can get to the secret through the other side too.
  3. To the right of the blue door near the yellow door there's an openable wall with a couple of flemoidus commonuses and a rapid zorcher.


  1. Behind the third essential door there's a stuck flemoidus bipedicus on an edge.
  2. In front of the red key there's a stuck flemoid larva on the walls.
  3. Some walls are shootable through.
  4. A random water sector will hurt you.
  5. The flemoidus maximus duo is stuck in each other.
  6. There's not enough zorch ammo in the map to send all the flemoids to their dimension.

Demo files[edit]

Areas / screenshots[edit]


Routes and tricks[edit]

  1. You can use the first non-official secret as a shortcut.
  2. Head straight to the exit in the final room without killing anything.

Current records[edit]

The records for the map at the Doom Speed Demo Archive are:

Run Time Player Date File Notes
UV speed 0:56.66 Plerb 2023-07-06 cq2_e1m5_0_56_66.zip
NM speed
UV max 4:37.66 Argentum 2023-06-25 cq2_5_m_4_37.zip
NM 100S
UV -fast 4:23.94 Argentum 2023-06-25 cq2_5_f_4_23.zip
UV -respawn
UV Tyson 5:13.97 Argentum 2023-06-27 cq2_5_t_5_13.zip
UV pacifist

The data was last verified in its entirety on July 10, 2023.


Map data[edit]

Things 188
Vertices 667*
Linedefs 838
Sidedefs 1141
Sectors 222
* The vertex count without the effect of node building is 610.


This level contains the following numbers of things per skill level:

Technical information[edit]

Inspiration and development[edit]


See also[edit]

External links[edit]